require 'formula' class Libyaml < Formula url 'http://pyyaml.org/download/libyaml/yaml-0.1.3.tar.gz' homepage 'http://pyyaml.org/wiki/LibYAML' md5 'b8ab9064e8e0330423fe640de76608cd' def install system "./configure", "--prefix=#{prefix}" system "make install" end end